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<html>
	<head>
		<meta charset="utf-8">
		<title>人生大起大落之JS补考</title>
	</head>
	<body>
		<div>
		    <input type="checkbox" name="aa" value="0" />0
		    <input type="checkbox" name=" aa " value="1" />1
		    <input type="checkbox" name=" aa " value="2" />2
		    <input type="checkbox" name=" aa " value="3" />3
		    <input type="button" onclick="abc()" value="提 交" />
		    <div id="allselect"></div>
		</div>
		
		<div>
		    <form name="a">
		        <select name="a" size="1" onchange="getOptionVal(this)">
		        <option value="a">1</option>
		        <option value="b">2</option>
		        <option value="c">3</option>
		        </select>
		    </form>
		</div>
		
		<div>
		    用户名：<input type="text" id="username"/><br/>
		    密  码：<input type="password" id="password"/><br/>
		　　 确认密码：<input type="password" id="password1"/><br/>
		    <button id="btnSubmit" type="button">提交</button><br/>
		</div>
		
		
		
		
		<table>
		    <tr>
		        <td>留言</td>
		        <td id="number"> 0 </td>
		    </tr>
		    <tr>
		        <td colspan=2>
		            <textarea id="feedBack" onkeyup="test()" rows=6></textarea>
		        </td>
		    </tr>
		</table>
		
		
		<script src="./js/jquery-3.6.0.js"></script>
		<script src="./js/base.js"></script>
	</body>
</html>
